<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        h1{
            color:yellow;
            font-size: 90px;
        }
        /*@import url("/css/index.css");*/
    </style>
    <link rel="stylesheet" href="/css四种导入方式/css/index.css">
</head>
<body>
    <h1 style="color: blue">好嘞~</h1>

</body>
</html>